Acorn, Font of Chaos

Whenever you would roll a die, flip a coin, or
randomly discard, roll a d20.
•1: Sacrifice 3 permanents and discard a card.
•2-9: Discard a card and draw 2 cards.
•10: Each player puts a permanent in their hand
onto the battlefield and sacrifices a permanent.
{bull}11-19: Each opponent loses 3 life. You untap all creatures you control.
{bull}20. Destroy 3 permanents and draw a card.